Phosphate/epoy stabilizer for extrudable polyester blends

Details Phosphate/epoy stabilizer for extrudable polyester blends Phosphate/epoy stabilizer for extrudable polyester blends

C - Chemistry, Metallurgy

08

K

134/45, 400/4501

C08K 5/52 (2006.01) C08K 5/00 (2006.01) C08K 5/521 (2006.01) C08L 67/02 (2006.01)

Patent

CA 1312155

Abstract of the Disclosure This invention is directed to a stabilizer useful to retard transesterification in moldable polymer blends containing polyester(s) during processing of the blends at elevated temperatures, particularly at high temperatures above about 285°C. More particularly, the stabilizer comprises a phosphate-epoxy adduct, The stabilizer may optionally further comprise a reactive functionality component comprising a compound having a imide or oxazoline functionality and/or a hindered phenol component. The invention is also directed to a composition comprising the stabilizer and a particularly defined polymer blend.

582151

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